shopmanagementactions.java

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/*
 * @author                        : Sujatha
 * @Version                       : 1.0
 *
 * Development Environment        : Oracle9i JDeveloper
 * Name of the File               : ShopManagementActions.java
 * Creation/Modification History  :
 *
 * Sujatha   16-Jan-2003      Created
 *
 */
package oracle.otnsamples.vsm.actions.owner;


// IO and Servlet APIs
import java.io.IOException;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import oracle.otnsamples.util.MessageCache;
import oracle.otnsamples.util.ServiceLocator;
import oracle.otnsamples.vsm.actions.forms.ShopForm;
import oracle.otnsamples.vsm.services.Administration;
import oracle.otnsamples.vsm.services.AdministrationHome;
import oracle.otnsamples.vsm.services.ShopException;
import oracle.otnsamples.vsm.services.ShopOwner;
import oracle.otnsamples.vsm.services.ShopOwnerHome;
import oracle.otnsamples.vsm.services.data.Category;
import oracle.otnsamples.vsm.services.data.Shop;
import oracle.otnsamples.vsm.services.data.ShopDetail;

import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;


/**
 * This action class is used to manage the shop - update shop information,
 * discontinue shop etc.
 * 
 * @author Sujatha
 * @version 1.0
 */
public class ShopManagementActions extends DispatchAction {
  /**
   * This is the action called from the Struts framework to discontinue a given
   * shop
   *
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   */
  public ActionForward discontinue(
                                   ActionMapping mapping, ActionForm form,
                                   HttpServletRequest request,
                                   HttpServletResponse response)
                                   throws IOException, ServletException {

    ShopOwnerHome shopHome = null;
    ShopOwner shop         = null;
    ActionForward forward  = mapping.findForward("discontinued");

    try {
      shopHome =
        (ShopOwnerHome) ServiceLocator.getLocator().getService("ShopOwner");
      shop = shopHome.create();
      shop.discontinueShop(
                           (String) request.getSession().getAttribute("shopID"),
                           request.getParameter("justify"),
                           request.getLocale().getLanguage());
      request.setAttribute(
                           "message",
                           MessageCache.getMessage(
                                                   "message.shopdiscontinue.success",
                                                   getLocale(request)));

    } catch(ShopException ex) {
      servlet.log("DiscontinueShopError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } catch(Exception ex) {
      servlet.log("DiscontinueShopError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } finally {

      try {

        if(shop != null) {
          shop.remove();
        }
      } catch(Exception ex) {
      }
    }

    return forward;
  }
  /**
   * This is the action called from the Struts framework to retrieve
   * information about a shop
   *
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   */
  public ActionForward getShopDetails(
                                      ActionMapping mapping, ActionForm form,
                                      HttpServletRequest request,
                                      HttpServletResponse response)
                               throws IOException, 
                                      ServletException {

    ShopOwnerHome shopHome       = null;
    ShopOwner shopBean           = null;
    AdministrationHome adminHome = null;
    Administration adminBean     = null;
    Shop shop                    = null;
    Category category            = null;
    ActionForward forward        = mapping.findForward("shopdetailsform");

    try {

      String langID = request.getLocale().getLanguage();
      shopHome =
        (ShopOwnerHome) ServiceLocator.getLocator().getService("ShopOwner");
      shopBean   = shopHome.create();
      shop =
        shopBean.getShopDetails(
                                (String) request.getSession().getAttribute("shopID"),
                                langID);

      // Get the category name associated with this shop          
      adminHome =
        (AdministrationHome) ServiceLocator.getLocator().getService("Administration");
      adminBean  = adminHome.create();
      category   = adminBean.findCategory(shop.getCategoryId(), langID);
      request.setAttribute("category", category.getName());
      request.setAttribute("shop", shop);
    } catch(ShopException ex) {
      servlet.log("ShopDetailsError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } catch(Exception ex) {
      servlet.log("ShopDetailsError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } finally {

      try {

        if(shopBean != null) {
          shopBean.remove();
        }

        if(adminBean != null) {
          adminBean.remove();
        }
      } catch(Exception ex) {
      }
    }

    return forward;
  }
  /**
   * This is the action called from the Struts framework to update shop
   * information
   *
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   */
  public ActionForward editShopDetails(
                                       ActionMapping mapping, ActionForm form,
                                       HttpServletRequest request,
                                       HttpServletResponse response)
                                throws IOException, 
                                       ServletException {

    ShopOwnerHome shopHome = null;
    ShopOwner shopBean     = null;
    ShopForm shopInfo      = (ShopForm) form;
    Shop shop              = null;
    ActionForward forward  = mapping.findForward("success");
    String langID          = request.getLocale().getLanguage();

    try {
      shopHome =
        (ShopOwnerHome) ServiceLocator.getLocator().getService("ShopOwner");
      shopBean = shopHome.create();

      List shopDetails = new ArrayList(1);
      shopDetails.add(new ShopDetail(
                                     langID, shopInfo.getShopName(),
                                     shopInfo.getDescription()));

      // Construct a value object to be passed to the shop service
      shop =
        new Shop(
                 (String) request.getSession().getAttribute("userName"), null,
                 null, (String) request.getSession().getAttribute("shopID"),
                 null, shopDetails);
      shopBean.updateShopDetails(shop);
      request.setAttribute(
                           "message",
                           MessageCache.getMessage(
                                                   "message.shopupdate.success",
                                                   getLocale(request)));

    } catch(ShopException ex) {
      servlet.log("EditShopDetailsError", ex);
      request.setAttribute(
                           "message",
                           MessageCache.getMessage(
                                                   ex.getMessageCode(),
                                                   getLocale(request)));
      forward = mapping.findForward("shopdetailsform");

      AdministrationHome adminHome = null;
      Administration adminBean     = null;

      /* If shop updation fails, retrieve earlier shop and category information
         and put the same in request scope to display the shop details form */
      try {
        shop =
          shopBean.getShopDetails(
                                  (String) request.getSession().getAttribute("shopID"),
                                  langID);
        adminHome =
          (AdministrationHome) ServiceLocator.getLocator().getService("Administration");
        adminBean = adminHome.create();

        Category category =
          adminBean.findCategory(shop.getCategoryId(), langID);
        request.setAttribute("category", category.getName());
      } catch(Exception e) {
        servlet.log("EditShopDetailsError", ex);      
        forward = mapping.findForward("error");
      }

      request.setAttribute("shop", shop);
    } catch(Exception ex) {
      servlet.log("EditShopDetailsError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } finally {

      try {

        if(shopBean != null) {
          shopBean.remove();
        }
      } catch(Exception ex) {
      }
    }

    return forward;
  }
}